Resenha do livro de Mick Stern
 Stern, Mick. Likely Stories. Ilustrações autor. Nova York: Maria Flophaus, 2021. 130p.

We establish monotone bijections between subsequences of the Farey sequences and the halfsequences of Farey subsequences associated with elements of the Boolean lattices.

The rapid adoption of smartphones and tablets as well as the widespread use of mobile applications has been fueling the growth of mobile commerce around the world. This paper quantifies the economic impact of tablets in ecommerce and m-commerce markets by examining its complementary and substitution effects with two other channels – PCs and smartphones. We use an archival data from the largest ...

Tractatus Logico-Philosophicus by Ludwig Wittgenstein: Three parallel tree-structured editions. (1) Tree-structured arrangement of the German text, edited David G. Stern, Joachim Schulte and Katia Saporiti. (2) English translation Ogden Ramsey, Stern. (3) Pears McGuinness,

the quenching of quinine fluorescence intensity in the presence of some anions in aqueous solution at ambient temperature has been investigated. the quenching is found to be collisional or dynamical in nature. this study reveals the order of two groups of quencher: nai > nabr > nacl > naf and k2cr2o7 > kmno4 >na2so4 > naclo3. increasing anion size in the both groups leads to an  increase in the...